#if defined (OS2) && defined (__IBMC__)
/*
 * Copyright Patrick Powell 1995
 * This code is based on code written by Patrick Powell (papowell@astart.com)
 * It may be used for any purpose as long as this notice remains intact
 * on all source code distributions
 */

/**************************************************************
 * Original:
 * Patrick Powell Tue Apr 11 09:48:21 PDT 1995
 * A bombproof version of doprnt (dopr) included.
 * Sigh.  This sort of thing is always nasty do deal with.  Note that
 * the version here does not include floating point...
 *
 * snprintf() is used instead of sprintf() as it does limit checks
 * for string length.  This covers a nasty loophole.
 *
 * The other functions are there to prevent NULL pointers from
 * causing nast effects.
 *
 * More Recently:
 *  Brandon Long <blong@fiction.net> 9/15/96 for mutt 0.43
 *  This was ugly.  It is still ugly.  I opted out of floating point
 *  numbers, but the formatter understands just about everything
 *  from the normal C string format, at least as far as I can tell from
 *  the Solaris 2.5 printf(3S) man page.
 *
 *  Brandon Long <blong@fiction.net> 10/22/97 for mutt 0.87.1
 *    Ok, added some minimal floating point support, which means this
 *    probably requires libm on most operating systems.  Don't yet
 *    support the exponent (e,E) and sigfig (g,G).  Also, fmtint()
 *    was pretty badly broken, it just wasn't being exercised in ways
 *    which showed it, so that's been fixed.  Also, formated the code
 *    to mutt conventions, and removed dead code left over from the
 *    original.  Also, there is now a builtin-test, just compile with:
 *           gcc -DTEST_SNPRINTF -o snprintf snprintf.c -lm
 *    and run snprintf for results.
 *
 *  Thomas Roessler <roessler@guug.de> 01/27/98 for mutt 0.89i
 *    The PGP code was using unsigned hexadecimal formats.
 *    Unfortunately, unsigned formats simply didn't work.
 *
 *  Michael Elkins <me@cs.hmc.edu> 03/05/98 for mutt 0.90.8
 *    The original code assumed that both snprintf() and vsnprintf() were
 *    missing.  Some systems only have snprintf() but not vsnprintf(), so
 *    the code is now broken down under HAVE_SNPRINTF and HAVE_VSNPRINTF.
 *
 *  Andrew Tridgell (tridge@samba.org) Oct 1998
 *    fixed handling of %.0f
 *    added test for HAVE_LONG_DOUBLE
 *
 * tridge@samba.org, idra@samba.org, April 2001
 *    got rid of fcvt code (twas buggy and made testing harder)
 *    added C99 semantics
 *
 **************************************************************/

#ifndef NO_CONFIG_H /* for some tests */
#include "config.h"
#endif

#ifdef HAVE_STRING_H
#include <string.h>
#endif

#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
#ifdef HAVE_CTYPE_H
#include <ctype.h>
#endif
#include <sys/types.h>
#include <stdarg.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif

#if defined(HAVE_SNPRINTF) && defined(HAVE_VSNPRINTF) && defined(HAVE_C99_VSNPRINTF)
/* only include stdio.h if we are not re-defining snprintf or vsnprintf */
#include <stdio.h>
/* make the compiler happy with an empty file */
void dummy_snprintf(void) {}
#else

#ifdef HAVE_LONG_DOUBLE
#define LDOUBLE long double
#else
#define LDOUBLE double
#endif

#ifdef HAVE_LONG_LONG
#define LLONG long long
#else
#define LLONG long
#endif

static size_t dopr(char *buffer, size_t maxlen, const char *format,
                   va_list args);
static void fmtstr(char *buffer, size_t *currlen, size_t maxlen,
                   char *value, int flags, int min, int max);
static void fmtint(char *buffer, size_t *currlen, size_t maxlen,
                   long value, int base, int min, int max, int flags);
static void fmtfp(char *buffer, size_t *currlen, size_t maxlen,
                  LDOUBLE fvalue, int min, int max, int flags);
static void dopr_outch(char *buffer, size_t *currlen, size_t maxlen, char c);

/*
 * dopr(): poor man's version of doprintf
 */

/* format read states */
#define DP_S_DEFAULT 0
#define DP_S_FLAGS   1
#define DP_S_MIN     2
#define DP_S_DOT     3
#define DP_S_MAX     4
#define DP_S_MOD     5
#define DP_S_CONV    6
#define DP_S_DONE    7

/* format flags - Bits */
#define DP_F_MINUS      (1 << 0)
#define DP_F_PLUS       (1 << 1)
#define DP_F_SPACE      (1 << 2)
#define DP_F_NUM        (1 << 3)
#define DP_F_ZERO       (1 << 4)
#define DP_F_UP         (1 << 5)
#define DP_F_UNSIGNED   (1 << 6)

/* Conversion Flags */
#define DP_C_SHORT   1
#define DP_C_LONG    2
#define DP_C_LDOUBLE 3
#define DP_C_LLONG   4

#define char_to_int(p) ((p)- '0')
#ifndef MAX
#define MAX(p,q) (((p) >= (q)) ? (p) : (q))
#endif

static size_t dopr(char *buffer, size_t maxlen, const char *format, va_list args)
{
  char ch;
  LLONG value;
  LDOUBLE fvalue;
  char *strvalue;
  int min;
  int max;
  int state;
  int flags;
  int cflags;
  size_t currlen;
        
  state = DP_S_DEFAULT;
  currlen = flags = cflags = min = 0;
  max = -1;
  ch = *format++;
        
  while (state != DP_S_DONE) {
    if (ch == '\0')
      state = DP_S_DONE;

    switch(state) {
    case DP_S_DEFAULT:
      if (ch == '%')
        state = DP_S_FLAGS;
      else
        dopr_outch (buffer, &currlen, maxlen, ch);
      ch = *format++;
      break;
    case DP_S_FLAGS:
      switch (ch) {
      case '-':
        flags |= DP_F_MINUS;
        ch = *format++;
        break;
      case '+':
        flags |= DP_F_PLUS;
        ch = *format++;
        break;
      case ' ':
        flags |= DP_F_SPACE;
        ch = *format++;
        break;
      case '#':
        flags |= DP_F_NUM;
        ch = *format++;
        break;
      case '0':
        flags |= DP_F_ZERO;
        ch = *format++;
        break;
      default:
        state = DP_S_MIN;
        break;
      }
      break;
    case DP_S_MIN:
      if (isdigit((unsigned char)ch)) {
        min = 10*min + char_to_int (ch);
        ch = *format++;
      } else if (ch == '*') {
        min = va_arg (args, int);
        ch = *format++;
        state = DP_S_DOT;
      } else {
        state = DP_S_DOT;
      }
      break;
    case DP_S_DOT:
      if (ch == '.') {
        state = DP_S_MAX;
        ch = *format++;
      } else {
        state = DP_S_MOD;
      }
      break;
    case DP_S_MAX:
      if (isdigit((unsigned char)ch)) {
        if (max < 0)
          max = 0;
        max = 10*max + char_to_int (ch);
        ch = *format++;
      } else if (ch == '*') {
        max = va_arg (args, int);
        ch = *format++;
        state = DP_S_MOD;
      } else {
        state = DP_S_MOD;
      }
      break;
    case DP_S_MOD:
      switch (ch) {
      case 'h':
        cflags = DP_C_SHORT;
        ch = *format++;
        break;
      case 'l':
        cflags = DP_C_LONG;
        ch = *format++;
        if (ch == 'l') {        /* It's a long long */
          cflags = DP_C_LLONG;
          ch = *format++;
        }
        break;
      case 'L':
        cflags = DP_C_LDOUBLE;
        ch = *format++;
        break;
      default:
        break;
      }
      state = DP_S_CONV;
      break;
    case DP_S_CONV:
      switch (ch) {
      case 'd':
      case 'i':
        if (cflags == DP_C_SHORT)
          value = va_arg (args, int);
        else if (cflags == DP_C_LONG)
          value = va_arg (args, long int);
        else if (cflags == DP_C_LLONG)
          value = va_arg (args, LLONG);
        else
          value = va_arg (args, int);
        fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags);
        break;
      case 'o':
        flags |= DP_F_UNSIGNED;
        if (cflags == DP_C_SHORT)
          value = va_arg (args, unsigned int);
        else if (cflags == DP_C_LONG)
          value = (long)va_arg (args, unsigned long int);
        else if (cflags == DP_C_LLONG)
          value = (long)va_arg (args, unsigned LLONG);
        else
          value = (long)va_arg (args, unsigned int);
        fmtint (buffer, &currlen, maxlen, value, 8, min, max, flags);
        break;
      case 'u':
        flags |= DP_F_UNSIGNED;
        if (cflags == DP_C_SHORT)
          value = va_arg (args, unsigned int);
        else if (cflags == DP_C_LONG)
          value = (long)va_arg (args, unsigned long int);
        else if (cflags == DP_C_LLONG)
          value = (LLONG)va_arg (args, unsigned LLONG);
        else
          value = (long)va_arg (args, unsigned int);
        fmtint (buffer, &currlen, maxlen, value, 10, min, max, flags);
        break;
      case 'X':
        flags |= DP_F_UP;
      case 'x':
        flags |= DP_F_UNSIGNED;
        if (cflags == DP_C_SHORT)
          value = va_arg (args, unsigned int);
        else if (cflags == DP_C_LONG)
          value = (long)va_arg (args, unsigned long int);
        else if (cflags == DP_C_LLONG)
          value = (LLONG)va_arg (args, unsigned LLONG);
        else
          value = (long)va_arg (args, unsigned int);
        fmtint (buffer, &currlen, maxlen, value, 16, min, max, flags);
        break;
      case 'f':
        if (cflags == DP_C_LDOUBLE)
          fvalue = va_arg (args, LDOUBLE);
        else
          fvalue = va_arg (args, double);
        /* um, floating point? */
        fmtfp (buffer, &currlen, maxlen, fvalue, min, max, flags);
        break;
      case 'E':
        flags |= DP_F_UP;
      case 'e':
        if (cflags == DP_C_LDOUBLE)
          fvalue = va_arg (args, LDOUBLE);
        else
          fvalue = va_arg (args, double);
        break;
      case 'G':
        flags |= DP_F_UP;
      case 'g':
        if (cflags == DP_C_LDOUBLE)
          fvalue = va_arg (args, LDOUBLE);
        else
          fvalue = va_arg (args, double);
        break;
      case 'c':
        dopr_outch (buffer, &currlen, maxlen, va_arg (args, int));
        break;
      case 's':
        strvalue = va_arg (args, char *);
        if (max == -1) {
          max = strlen(strvalue);
        }
        if (min > 0 && max >= 0 && min > max) max = min;
        fmtstr (buffer, &currlen, maxlen, strvalue, flags, min, max);
        break;
      case 'p':
        strvalue = va_arg (args, void *);
        fmtint (buffer, &currlen, maxlen, (long) strvalue, 16, min, max, flags);
        break;
      case 'n':
        if (cflags == DP_C_SHORT) {
          short int *num;
          num = va_arg (args, short int *);
          *num = currlen;
        } else if (cflags == DP_C_LONG) {
          long int *num;
          num = va_arg (args, long int *);
          *num = (long int)currlen;
        } else if (cflags == DP_C_LLONG) {
          LLONG *num;
          num = va_arg (args, LLONG *);
          *num = (LLONG)currlen;
        } else {
          int *num;
          num = va_arg (args, int *);
          *num = currlen;
        }
        break;
      case '%':
        dopr_outch (buffer, &currlen, maxlen, ch);
        break;
      case 'w':
        /* not supported yet, treat as next char */
        ch = *format++;
        break;
      default:
        /* Unknown, skip */
        break;
      }
      ch = *format++;
      state = DP_S_DEFAULT;
      flags = cflags = min = 0;
      max = -1;
      break;
    case DP_S_DONE:
      break;
    default:
      /* hmm? */
      break; /* some picky compilers need this */
    }
  }
  if (maxlen != 0) {
    if (currlen < maxlen - 1)
      buffer[currlen] = '\0';
    else if (maxlen > 0)
      buffer[maxlen - 1] = '\0';
  }
        
  return currlen;
}

static void fmtstr(char *buffer, size_t *currlen, size_t maxlen,
                   char *value, int flags, int min, int max)
{
  int padlen, strln;     /* amount to pad */
  int cnt = 0;

#ifdef DEBUG_SNPRINTF
  printf("fmtstr min=%d max=%d s=[%s]\n", min, max, value);
#endif
  if (value == 0) {
    value = "<NULL>";
  }

  for (strln = 0; value[strln]; ++strln); /* strlen */
  padlen = min - strln;
  if (padlen < 0)
    padlen = 0;
  if (flags & DP_F_MINUS)
    padlen = -padlen; /* Left Justify */
        
  while ((padlen > 0) && (cnt < max)) {
    dopr_outch (buffer, currlen, maxlen, ' ');
    --padlen;
    ++cnt;
  }
  while (*value && (cnt < max)) {
    dopr_outch (buffer, currlen, maxlen, *value++);
    ++cnt;
  }
  while ((padlen < 0) && (cnt < max)) {
    dopr_outch (buffer, currlen, maxlen, ' ');
    ++padlen;
    ++cnt;
  }
}

/* Have to handle DP_F_NUM (ie 0x and 0 alternates) */

static void fmtint(char *buffer, size_t *currlen, size_t maxlen,
                   long value, int base, int min, int max, int flags)
{
  int signvalue = 0;
  unsigned long uvalue;
  char convert[20];
  int place = 0;
  int spadlen = 0; /* amount to space pad */
  int zpadlen = 0; /* amount to zero pad */
  int caps = 0;
        
  if (max < 0)
    max = 0;
        
  uvalue = value;
        
  if(!(flags & DP_F_UNSIGNED)) {
    if( value < 0 ) {
      signvalue = '-';
      uvalue = -value;
    } else {
      if (flags & DP_F_PLUS)  /* Do a sign (+/i) */
        signvalue = '+';
      else if (flags & DP_F_SPACE)
        signvalue = ' ';
    }
  }
  
  if (flags & DP_F_UP) caps = 1; /* Should characters be upper case? */

  do {
    convert[place++] =
      (caps? "0123456789ABCDEF":"0123456789abcdef")
      [uvalue % (unsigned)base  ];
    uvalue = (uvalue / (unsigned)base );
  } while(uvalue && (place < 20));
  if (place == 20) place--;
  convert[place] = 0;

  zpadlen = max - place;
  spadlen = min - MAX (max, place) - (signvalue ? 1 : 0);
  if (zpadlen < 0) zpadlen = 0;
  if (spadlen < 0) spadlen = 0;
  if (flags & DP_F_ZERO) {
    zpadlen = MAX(zpadlen, spadlen);
    spadlen = 0;
  }
  if (flags & DP_F_MINUS)
    spadlen = -spadlen; /* Left Justifty */

#ifdef DEBUG_SNPRINTF
  printf("zpad: %d, spad: %d, min: %d, max: %d, place: %d\n",
         zpadlen, spadlen, min, max, place);
#endif

  /* Spaces */
  while (spadlen > 0) {
    dopr_outch (buffer, currlen, maxlen, ' ');
    --spadlen;
  }

  /* Sign */
  if (signvalue)
    dopr_outch (buffer, currlen, maxlen, signvalue);

  /* Zeros */
  if (zpadlen > 0) {
    while (zpadlen > 0) {
      dopr_outch (buffer, currlen, maxlen, '0');
      --zpadlen;
    }
  }

  /* Digits */
  while (place > 0)
    dopr_outch (buffer, currlen, maxlen, convert[--place]);
  
  /* Left Justified spaces */
  while (spadlen < 0) {
    dopr_outch (buffer, currlen, maxlen, ' ');
    ++spadlen;
  }
}

static LDOUBLE abs_val(LDOUBLE value)
{
  LDOUBLE result = value;

  if (value < 0)
    result = -value;
        
  return result;
}

static LDOUBLE POW10(int exp)
{
  LDOUBLE result = 1;
        
  while (exp) {
    result *= 10;
    exp--;
  }
  
  return result;
}

static LLONG ROUND(LDOUBLE value)
{
  LLONG intpart;

  intpart = (LLONG)value;
  value = value - intpart;
  if (value >= 0.5) intpart++;
        
  return intpart;
}

/* a replacement for modf that doesn't need the math library. Should
   be portable, but slow */
static double my_modf(double x0, double *iptr)
{
  int i;
  long l;
  double x = x0;
  double f = 1.0;

  for (i=0;i<100;i++) {
    l = (long)x;
    if (l <= (x+1) && l >= (x-1)) break;
    x *= 0.1;
    f *= 10.0;
  }

  if (i == 100) {
    /* yikes! the number is beyond what we can handle. What do we do? */
    (*iptr) = 0;
    return 0;
  }

  if (i != 0) {
    double i2;
    double ret;

    ret = my_modf(x0-l*f, &i2);
    (*iptr) = l*f + i2;
    return ret;
  }

  (*iptr) = l;
  return x - (*iptr);
}


static void fmtfp (char *buffer, size_t *currlen, size_t maxlen,
                   LDOUBLE fvalue, int min, int max, int flags)
{
  int signvalue = 0;
  double ufvalue;
  char iconvert[311];
  char fconvert[311];
  int iplace = 0;
  int fplace = 0;
  int padlen = 0; /* amount to pad */
  int zpadlen = 0;
  int caps = 0;
  int index;
  double intpart;
  double fracpart;
  double temp;
  
  /*
   * AIX manpage says the default is 0, but Solaris says the default
   * is 6, and sprintf on AIX defaults to 6
   */
  if (max < 0)
    max = 6;

  ufvalue = abs_val (fvalue);

  if (fvalue < 0) {
    signvalue = '-';
  } else {
    if (flags & DP_F_PLUS) { /* Do a sign (+/i) */
      signvalue = '+';
    } else {
      if (flags & DP_F_SPACE)
        signvalue = ' ';
    }
  }

#if 0
  if (flags & DP_F_UP) caps = 1; /* Should characters be upper case? */
#endif

#if 0
  if (max == 0) ufvalue += 0.5; /* if max = 0 we must round */
#endif

  /*
   * Sorry, we only support 16 digits past the decimal because of our
   * conversion method
   */
  if (max > 16)
    max = 16;

  /* We "cheat" by converting the fractional part to integer by
   * multiplying by a factor of 10
   */

  temp = ufvalue;
  my_modf(temp, &intpart);

  fracpart = ROUND((POW10(max)) * (ufvalue - intpart));
        
  if (fracpart >= POW10(max)) {
    intpart++;
    fracpart -= POW10(max);
  }


  /* Convert integer part */
  do {
    temp = intpart;
    my_modf(intpart*0.1, &intpart);
    temp = temp*0.1;
    index = (int) ((temp -intpart +0.05)* 10.0);
    /* index = (int) (((double)(temp*0.1) -intpart +0.05) *10.0); */
    /* printf ("%llf, %f, %x\n", temp, intpart, index); */
    iconvert[iplace++] =
      (caps? "0123456789ABCDEF":"0123456789abcdef")[index];
  } while (intpart && (iplace < 311));
  if (iplace == 311) iplace--;
  iconvert[iplace] = 0;

  /* Convert fractional part */
  if (fracpart)
    {
      do {
        temp = fracpart;
        my_modf(fracpart*0.1, &fracpart);
        temp = temp*0.1;
        index = (int) ((temp -fracpart +0.05)* 10.0);
        /* index = (int) ((((temp/10) -fracpart) +0.05) *10); */
        /* printf ("%lf, %lf, %ld\n", temp, fracpart, index); */
        fconvert[fplace++] =
          (caps? "0123456789ABCDEF":"0123456789abcdef")[index];
      } while(fracpart && (fplace < 311));
      if (fplace == 311) fplace--;
    }
  fconvert[fplace] = 0;
  
  /* -1 for decimal point, another -1 if we are printing a sign */
  padlen = min - iplace - max - 1 - ((signvalue) ? 1 : 0);
  zpadlen = max - fplace;
  if (zpadlen < 0) zpadlen = 0;
  if (padlen < 0)
    padlen = 0;
  if (flags & DP_F_MINUS)
    padlen = -padlen; /* Left Justifty */
        
  if ((flags & DP_F_ZERO) && (padlen > 0)) {
    if (signvalue) {
      dopr_outch (buffer, currlen, maxlen, signvalue);
      --padlen;
      signvalue = 0;
    }
    while (padlen > 0) {
      dopr_outch (buffer, currlen, maxlen, '0');
      --padlen;
    }
  }
  while (padlen > 0) {
    dopr_outch (buffer, currlen, maxlen, ' ');
    --padlen;
  }
  if (signvalue)
    dopr_outch (buffer, currlen, maxlen, signvalue);
        
  while (iplace > 0)
    dopr_outch (buffer, currlen, maxlen, iconvert[--iplace]);

#ifdef DEBUG_SNPRINTF
  printf("fmtfp: fplace=%d zpadlen=%d\n", fplace, zpadlen);
#endif

  /*
   * Decimal point.  This should probably use locale to find the correct
   * char to print out.
   */
  if (max > 0) {
    dopr_outch (buffer, currlen, maxlen, '.');
                
    while (fplace > 0)
      dopr_outch (buffer, currlen, maxlen, fconvert[--fplace]);
  }
        
  while (zpadlen > 0) {
    dopr_outch (buffer, currlen, maxlen, '0');
    --zpadlen;
  }

  while (padlen < 0) {
    dopr_outch (buffer, currlen, maxlen, ' ');
    ++padlen;
  }
}

static void dopr_outch(char *buffer, size_t *currlen, size_t maxlen, char c)
{
  if (*currlen < maxlen) {
    buffer[(*currlen)] = c;
  }
  (*currlen)++;
}

#if !defined(HAVE_VSNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
int vsnprintf (char *str, size_t count, const char *fmt, va_list args)
{
  return dopr(str, count, fmt, args);
}
#endif

#if !defined(HAVE_SNPRINTF) || !defined(HAVE_C99_VSNPRINTF)
int snprintf(char *str,size_t count,const char *fmt,...)
{
  size_t ret;
  va_list ap;
    
  va_start(ap, fmt);
  ret = vsnprintf(str, count, fmt, ap);
  va_end(ap);
  return ret;
}
#endif

#endif

#ifndef HAVE_VASPRINTF
int vasprintf(char **ptr, const char *format, va_list ap)
{
  int ret;
        
  ret = vsnprintf(NULL, 0, format, ap);
  if (ret <= 0) return ret;

  (*ptr) = (char *)malloc(ret+1);
  if (!*ptr) return -1;
  ret = vsnprintf(*ptr, ret+1, format, ap);

  return ret;
}
#endif


#ifndef HAVE_ASPRINTF
int asprintf(char **ptr, const char *format, ...)
{
  va_list ap;
  int ret;
        
  va_start(ap, format);
  ret = vasprintf(ptr, format, ap);
  va_end(ap);

  return ret;
}
#endif

#ifdef TEST_SNPRINTF

int sprintf(char *str,const char *fmt,...);

int main (void)
{
  char buf1[1024];
  char buf2[1024];
  char *fp_fmt[] = {
    "%1.1f",
    "%-1.5f",
    "%1.5f",
    "%123.9f",
    "%10.5f",
    "% 10.5f",
    "%+22.9f",
    "%+4.9f",
    "%01.3f",
    "%4f",
    "%3.1f",
    "%3.2f",
    "%.0f",
    "%f",
    "-16.16f",
    NULL
  };
  double fp_nums[] = { 6442452944.1234, -1.5, 134.21, 91340.2, 341.1234, 0203.9, 0.96, 0.996,
                       0.9996, 1.996, 4.136,  0};
  char *int_fmt[] = {
    "%-1.5d",
    "%1.5d",
    "%123.9d",
    "%5.5d",
    "%10.5d",
    "% 10.5d",
    "%+22.33d",
    "%01.3d",
    "%4d",
    "%d",
    NULL
  };
  long int_nums[] = { -1, 134, 91340, 341, 0203, 0};
  char *str_fmt[] = {
    "10.5s",
    "5.10s",
    "10.1s",
    "0.10s",
    "10.0s",
    "1.10s",
    "%s",
    "%.1s",
    "%.10s",
    "%10s",
    NULL
  };
  char *str_vals[] = {"hello", "a", "", "a longer string", NULL};
  int x, y;
  int fail = 0;
  int num = 0;

  printf ("Testing snprintf format codes against system sprintf...\n");

  for (x = 0; fp_fmt[x] ; x++) {
    for (y = 0; fp_nums[y] != 0 ; y++) {
      int l1 = snprintf(NULL, 0, fp_fmt[x], fp_nums[y]);
      int l2 = snprintf(buf1, sizeof(buf1), fp_fmt[x], fp_nums[y]);
      sprintf (buf2, fp_fmt[x], fp_nums[y]);
      if (strcmp (buf1, buf2)) {
        printf("snprintf doesn't match Format: %s\n\tsnprintf = [%s]\n\t sprintf = [%s]\n",
               fp_fmt[x], buf1, buf2);
        fail++;
      }
      if (l1 != l2) {
        printf("snprintf l1 != l2 (%d %d) %s\n", l1, l2, fp_fmt[x]);
        fail++;
      }
      num++;
    }
  }

  for (x = 0; int_fmt[x] ; x++) {
    for (y = 0; int_nums[y] != 0 ; y++) {
      int l1 = snprintf(NULL, 0, int_fmt[x], int_nums[y]);
      int l2 = snprintf(buf1, sizeof(buf1), int_fmt[x], int_nums[y]);
      sprintf (buf2, int_fmt[x], int_nums[y]);
      if (strcmp (buf1, buf2)) {
        printf("snprintf doesn't match Format: %s\n\tsnprintf = [%s]\n\t sprintf = [%s]\n",
               int_fmt[x], buf1, buf2);
        fail++;
      }
      if (l1 != l2) {
        printf("snprintf l1 != l2 (%d %d) %s\n", l1, l2, int_fmt[x]);
        fail++;
      }
      num++;
    }
  }

  for (x = 0; str_fmt[x] ; x++) {
    for (y = 0; str_vals[y] != 0 ; y++) {
      int l1 = snprintf(NULL, 0, str_fmt[x], str_vals[y]);
      int l2 = snprintf(buf1, sizeof(buf1), str_fmt[x], str_vals[y]);
      sprintf (buf2, str_fmt[x], str_vals[y]);
      if (strcmp (buf1, buf2)) {
        printf("snprintf doesn't match Format: %s\n\tsnprintf = [%s]\n\t sprintf = [%s]\n",
               str_fmt[x], buf1, buf2);
        fail++;
      }
      if (l1 != l2) {
        printf("snprintf l1 != l2 (%d %d) %s\n", l1, l2, str_fmt[x]);
        fail++;
      }
      num++;
    }
  }

  printf ("%d tests failed out of %d.\n", fail, num);

  printf("seeing how many digits we support\n");
  {
    double v0 = 0.12345678901234567890123456789012345678901;
    for (x=0; x<100; x++) {
      snprintf(buf1, sizeof(buf1), "%1.1f", v0*pow(10, x));
      sprintf(buf2,                "%1.1f", v0*pow(10, x));
      if (strcmp(buf1, buf2)) {
        printf("we seem to support %d digits\n", x-1);
        break;
      }
    }
  }

  return 0;
}
#endif /* SNPRINTF_TEST */

#endif /* OS2 && __IBMC__ */
